Referring to Jumper the spider, who needs to hide himself in human form, and he's learning to act like a human.

"I'm sure I can learn to walk faster than that," he said desperately.
"But you'll also need to learn the nuances of human behavior. Such as not going around naked."
"What's wrong with being natural?" he demanded.
"Humans aren't natural. They are girt about by all manner of conventions. It will take time for you to catch up with them all.

Author: Piers Anthony